Pressure losses at dividing and combining junctions in a molten carbonate fuel cell stack

Haruhiko Hirata, Takao Nakagaki, Michio Hori

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The pressure losses at manifold junctions in a molten carbonate fuel cell (MCFC) stack depend on the stacking positions of the cells and the flow rate in the manifold. These pressure losses affect the uniformity of gas flow rate in each stacked cell and consequently also affect the cell performance. In this study, the pressure losses at dividing and combining junctions in a plate heat-exchanger type MCFC stack were examined by numerical analysis. A stack consisting of 100 cells was assumed, and the junction pressure losses at various stacking positions of cells were calculated under various flow rate conditions ranging from the minimum possible flow rate (80% utilization of fuel gas) to the maximum possible flow rate (10% utilization of oxidant gas). The results were arranged according to the equations for loss coefficients, and were compared with the experimental results of previous studies.

Original languageEnglish
Pages (from-to)118-123
Number of pages6
JournalJournal of Power Sources
Volume102
Issue number1-2
DOIs
Publication statusPublished - 2001 Dec 1
Externally publishedYes

Fingerprint

molten carbonate fuel cells
Molten carbonate fuel cells (MCFC)
flow velocity
Flow rate
cells
Gas fuels
heat exchangers
Oxidants
gases
numerical analysis
Heat exchangers
gas flow
Flow of gases
Numerical analysis
Gases
coefficients

Keywords

  • Combining junction
  • Dividing junction
  • Manifold
  • Molten carbonate fuel cell
  • Numerical analysis
  • Pressure loss
  • Stack

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry

Cite this

Pressure losses at dividing and combining junctions in a molten carbonate fuel cell stack. / Hirata, Haruhiko; Nakagaki, Takao; Hori, Michio.

In: Journal of Power Sources, Vol. 102, No. 1-2, 01.12.2001, p. 118-123.

Research output: Contribution to journalArticle

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